Acceleration due to gravity
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| A net force causes a mass to ___ | accelerate
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| In a = F/m, acceleration is directly proportional to __ | (net) force
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| a = F/m or F = ma is a formula developed by this man | Isaac Newton
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| a = F/m or F = ma is the formula representing which law of motion | Newton's 2nd Law of Motion
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| A falling object reaches terminal velocity when these two forces are balanced | weight(gravity on an object) and air resistance
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| Weight is a ___ | force
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| In SI, all forces are measured in ___ | newtons (N)
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| Constant velocity results when forces are | balanced (no net force)
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| The constant velocity reached by a falling object when forces acting on it are balanced is called ___ | terminal velocity
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| The amount of gravity any object has is due to the object's amount of ___ | mass
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| In a = F/m, acceleration is inversely proportional to ___ | mass
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| The amount of air resistance acting upon an object is based on the object's ___ | surface area
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| When a falling object's weight is greater than the force of air resistance the object will be | accelerating by speeding up
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| When a falling object's weight is less than the force of air resistance acting on it, it will | accelerate by slowing down
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| In the absence of air, all objects fall at the ___ | same acceleration or same rate
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| This force opposes all motion. | friction
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| The force of gravity on Earth causes an acceleration rate of ___ | 9.8 m/s squared
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| Adding all of the forces acting upon an object together finds the ___ force. | net (force)
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| Moving at a constant velocity requires forces that are ____ | balanced (forces)
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| When all of the forces acting on a body add up to zero, there is no __ | acceleration
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| Weight = mass X ___ | gravity or acceleration due to gravity
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| acceleration = force divided by __ | mass
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| a normal force is a ___ force | support
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| the curved path a thrown or launched object on earth follows is called | projectile motion
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| according to a = F/m, the greater the force applied to a mass, the greater it will ___ | accelerate
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| N stands for___ | newton
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| He dropped items from the Leaning Tower of Pisa to see if they would land at the same time. | Galileo
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| In SI, velocity is measured in __ | m/s
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| The SI unit of length is the ___ | meter (m)
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| The SI unit of mass is the ___ | kilogram (kg)
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| The greater the mass, the greater the ___ necessary to accelerate | force
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| When forces are balanced, the net force equals ___ | zero
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| Force equals mass times ___ | acceleration
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| The net force of a falling object is weight minus ___. | air resistance
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| When sitting on a chair, the chair is exerting a ____ force. | normal
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| mass time gravity equals ___. | weight
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| 9.8 m/s squared is the acceleration due to gravity on ___. | Earth
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| Earth has more gravity than the moon because of Earth's greater ___. | mass
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